ImageMagick has a Heap Buffer Overflow via MVG decoder

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Summary

CVECVE-2026-33901
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-13 21:16:25 UTC
Updated2026-04-13 21:16:25 UTC
DescriptionImageMagick is free and open-source software used for editing and manipulating digital images. In versions below both 7.1.2-19 and 6.9.13-44, a heap buffer overflow occurs in the MVG decoder that could result in an out of bounds write when processing a crafted image. This issue has been fixed in versions 6.9.13-44 and 7.1.2-19.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-122 | CWE-787 | CWE-122 CWE-122: Heap-based Buffer Overflow | CWE-787 CWE-787: Out-of-bounds Write

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1CNADECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA ImageMagick ImageMagick affected < 7.1.2-19 Not specified
CNA ImageMagick ImageMagick affected < 6.9.13-44 Not specified

References

ReferenceSourceLinkTags
github.com/ImageMagick/ImageMagick/commit/4c72003e9e54a4ebaa938d239e75f5... [email protected] github.com
github.com/ImageMagick/ImageMagick/security/advisories/GHSA-x9h5-r9v2-vcww [email protected] github.com
github.com/dlemstra/Magick.NET/releases/tag/14.12.0 [email protected] github.com
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